South Pole's calculation procedure for GHG emissions from flights is based on the Greenhouse Gas Protocol (GHG Protocol), the most widely used international accounting tool for government and business leaders to understand, quantify and manage greenhouse gas emissions.
The GHG Protocol was developed by the World Resources Institute and the World
Business Council for Sustainable Development. South Pole also follows the UK Department for Business, Energy & Industrial Strategy (UK BEIS) methodology (previously published by DEFRA and DECC) for determining flight emission factors and uses UK BEIS data to calculate flight emissions. The UK BEIS guidelines on the calculation of GHG emissions from flights are one of the de-facto standards of our industry, since they are one of the few reliable and up to date sources for data on flight emissions. The latest UK BEIS emission factors for flights can be found in the UK Government web page